18121985

素因数分解:

$5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{853}}^1$

素因数の和:1472

約数の個数: 16

約数和(自身を含む): 24923136

約数和(自身を除く): 6801151

約数列:

[1, 5, 7, 35, 607, 853, 3035, 4249, 4265, 5971, 21245, 29855, 517771, 2588855, 3624397, 18121985]

約数ペア:

[(1, 18121985), (5, 3624397), (7, 2588855), (35, 517771), (607, 29855), (853, 21245), (3035, 5971), (4249, 4265)]